== Installing Delphes from Source ==

To successfully build Delphes the following prerequisite packages should be installed:
 - [http://root.cern.ch/drupal/content/downloading-root ROOT Data Analysis Framework]
 - [http://www.tcl.tk Tcl scripting language]

Commands to download Delphes' source and build Delphes: 

{{{
  setup ROOT environment variables

  wget --no-check-certificate https://cp3.irmp.ucl.ac.be/projects/delphes/raw-attachment/wiki/WikiStart/Delphes_V_3.0.0.tar.gz
  tar -zxf Delphes_V_3.0.0.tar.gz

  cd Delphes_V_3.0.0
  make -j 4
}}}

== Running Delphes ==

When running Delphes without parameters or when supplying an invalid command line, the following message will be shown:
{{{
./DelphesHepMC
 Usage: DelphesHepMC config_file output_file [input_file(s)]
 config_file - configuration file in Tcl format,
 output_file - output file in ROOT format,
 input_file(s) - input file(s) in HepMC format,
 with no input_file, or when input_file is -, read standard input.
}}}

Running Delphes with HepMC input files:
{{{
./DelphesHepMC examples/delphes_card_CMS.tcl output.root input.hepmc
}}}

Running Delphes with STDHEP (XDR) input files:
{{{
./DelphesSTDHEP examples/delphes_card_CMS.tcl output.root input.hep
}}}

Running Delphes with LHEF input files:
{{{
./DelphesLHEF examples/delphes_card_CMS.tcl output.root input.lhef
}}}

Running Delphes with files stored in CASTOR:
{{{
rfcat /castor/cern.ch/user/d/demine/test.hepmc.gz | gunzip | ./DelphesHepMC examples/delphes_card_CMS.tcl output.root
}}}

Running Delphes with files accessible via HTTP:
{{{
curl http://cp3.irmp.ucl.ac.be/~demin/test.hepmc.gz | gunzip | ./DelphesHepMC examples/delphes_card_CMS.tcl output.root
}}}